baber/WOPTO huggingface dataset:
Patent GB-701947-A (GB)
Abstract: 701,947. Intercommunication systems. ADLER, A. E. Oct. 6, 1952 [Oct. 5, 1951], No. 23273/51. Class 40 (4) Communication with a remote sub-station equipped with a loudspeaker 12 which also functions as a microphone, is effected over an amplifier 13 which is normally switched for speech outgoing from the remote substation but is reversed by incoming speech which thereby exercises a predominating influence. The remote sub-station has no calling facilities and is connected by speech wires 40, 41, 42 to an intercommunication system comprising two or more stations each having a transmitter 10 and a receiver 11 which may be arranged in a handset. Calling between the stations is effected by push-buttons 28 which connect a ringing battery 15 through a ringing bar 36 to the buzzer 32 of the station required. When the operated push-button is released it remains locked in contact with a speaking bar 35, and the speech circuit is effective by way of the home line 30 or 31 of the called station and through a condenser 34 and the operated switch-hook contacts SH. A bridge circuit 19 comprising four resistors arranged as described in Specification 650,070 is included in the speech circuit at each station. To call the remote sub-station a multi-contact switch K is operated and relay R is pulled up over leads 41, 42 by a speech battery 16. Busy signal lamps 18 are then lit over contact R44 at all the stations except the one having an operated switch K. The loudspeaker-microphone 12 is normally connected through the amplifier 13 to lines 40, 42. When speech currents from the calling station flow through the energising winding 50 of relay R, a voice-controlled relay VCRU is pulled up over an inductively coupled winding 51 and at contacts V reverses, the direction of the amplifier. Simultaneously the loudspeaker is disconnected from lead 40 and speech from the calling station to the sub-station is transmitted over a third winding 52 of relay R. Immediately speech in this direction ceases, relay VCRU falls back and restores the amplifier and loudspeaker to their original connectors. According to the Specification, separate amplifiers may be provided for each direction of speech instead of a single amplifier. Several remote stations may be used, selector means such as push-buttons controlling selfholding relays being provided at each station.
Patent GB-2002856-A (GB)
Title: Turbine type flow meters
IPC: G01F1/11
Filed: 1978-07-12
Abstract: A measuring insert for a water meter is intended for incorporation in meter housings (1, 2) of different diameters and comprises an impeller (4), connected to a counting mechanism (19) by a transmission. To adapt the insert for use with different housing diameters, the transmission mechanism incorporates a change-speed gear (12, 13 etc). <IMAGE>
Patent GB-2002064-A (GB)
Title: Wins powered rotary machine
IPC: F03D7/06
Filed: 1978-08-21
Abstract: The machine comprises a vertical shaft 1 and a collar 7 which supports vertical grids 8 extending radially of the collar. Each grid 8 is associated with flexible sheets 6 which cover at least part of the grid during downwind motion and extend parallel to the wind direction during upwind motion. The collar 7 is held relative to the shaft by a spring 14 until the turning moment due to the wind impinging on the sheets 6 exceeds the opposite turning moment due to the spring 14 when the collar rotates relative to the shaft 1 reducing the area of each grid 8 covered by the sheets 6 thereby limiting the turning moment to a predetermined value. <IMAGE>
Patent GB-2030946-A (GB)
Title: Rigging for a tiltable mast
IPC: B63H9/10
Filed: 1978-10-06
Abstract: A sailing boat has a hull structure 1 on which a mast 5 is stepped by a ball and socket joint. The mast 5 is stayed by a forestay 7, 8, 9 and a pair of lateral shrouds 11 which include block and tackle assemblies 12 interconnected by a line 13 rove through both assemblies and passing through a point accessible to the sailor. By moving the line 13 along its path in a selected direction, one assembly 11 is shortened and the other lengthened. The mast 5 is thus laterally tilted as required. <IMAGE>
Patent GB-2012252-A (GB)
Title: Extraction process
IPC: C22B60/02
Filed: 1978-11-14
Abstract: A process for extracting at least two desired constituents from a mineral comprises using a liquid reagent which produces the constituents, or compounds thereof, in separable form and independently extracting those constituents, or compounds thereof. The process is especially valuable for the extraction of phosphoric acid and metal values from acidulated phosphate rock, the slurry being contacted with selective extractants for phosphoric acid and metal (e.g. uranium) values.
Patent GB-2036616-A (GB)
Title: Positioning and rotating workpieces
IPC: B24B41/06
Filed: 1978-12-13
Abstract: During machining a workpiece 1 shaped as a body of revolution and having a plane face, the workpiece is supported against separate axial and radial supports 3, 2, and is rotated by a rotary driving member 5 having frictional contact with the workpiece, and at least one of the supports 2, 3 is vibrated at ultrasonic frequency and in a direction substantially parallel to, or inclined at an angle  alpha not greater than 10 degrees to, the line of contact between the workpiece and said support. <IMAGE>
Patent GB-2014147-A (GB)
Title: Production of 1,3-diaza- heterocycles
IPC: C07D233/24
Filed: 1979-02-12
Abstract: A process for the preparation of 1,3-diaza-heterocycles of formula   <IMAGE>  wherein X is the group   <IMAGE> n is 2, 3 or 4, and each R2 is hydrogen or an alkyl group or X is an optionally- substituted ortho-phenylene group;  m is 0 or 1; R is hydrogen or an alkyl or alkenyl group optionally substituted by alkoxy, or an aryl group optionally-substituted by alkoxy or alkyl; R1 is an alkyl, alkylidene or alkenyl group optionally-substituted or is an aryl or heterocyclic group optionally- substituted which comprises reacting a thiazine of formula   <IMAGE> wherein R2 and m have the meaning hereinbefore specified with a diamine of formula   <IMAGE> wherein R and X have the meanings hereinbefore specified; the broken lines in formulae I and II representing chemical bonds to satisfy the valencies of the atoms joined by these broken lines. The starting thiazines and the resulting 1,3-diaza-heterocycles both possess pesticidal properties.
Patent GB-2040874-A (GB)
Title: Grid box pallet wall
IPC: B65D19/12
Filed: 1979-02-21
Abstract: In a grid wall made of aluminium or steel for a grid box pallet consisting of a rectangular frame and a plurality of bars 14 connecting opposed members 11 of the frame, the bars 14 are tubular at least at their ends and are fitted at opposite ends on to pins 12 mounted, as by welding, on said opposed frame members 11. Each pin 12 may have a sleeve 13 made of plastics material. <IMAGE>
Patent GB-2017518-A (GB)
Title: Filter-changer
IPC: B29C48/03
Filed: 1979-03-01
Abstract: A filter-changer, especially for synthetic plastics processing extruders, having filter cassettes mounted on a guide track in the filter housing which are displaceable perpendicularly of the axis of a flow passage by means of a hydraulic working cylinder, is characterised in that an annular pressure chamber (5) is arranged in the filter housing (1) in the direction (3) of composition flow behind the filter cassette (8) situated in the working position and coaxially with the flow passage (2), the pressure chamber (5) being bounded on its side adjacent the cassette 8 by a diaphragm which seals against the cassette when the chamber is pressurised. The pressure in the chamber is released for changing the cassette. <IMAGE>
Patent GB-2048460-A (GB)
Title: Solar energy collection
IPC: F24S10/50
Filed: 1979-05-03
Abstract: A solar energy collection system comprises an inflatable bag (10) having an inlet (21) and an outlet (22). The bag may comprise two sheets (12, 14) of plastics material, say polyethylene, joined together at their margins. Either or both of the sheets may be transparent. Gas or liquid may be circulated through the bag by any suitable means such as an electric fan or blower. <IMAGE>
Patent GB-2023018-A (GB)
Title: Method and device for maintaining a filter press in closed state
IPC: B01D25/19
Filed: 1979-05-10
Abstract: A filter press is closed by a piston (18) and cylinder (17) and the length by which the filter press pack may permissibly expand during filtering is set by adjusting abutment (24). A contact maker (20) is slidably mounted on the piston (18) to contact the abutment (24) when the filter press is closed and to actuate a switch (25) when the pack expansion causes the piston (18) to move back more than the permissible length. The switch (25), when actuated, operates a pump (27) to increase the pressure in the cylinder (17), thereby to decrease the expansion of the pack to less than the permissible length. <IMAGE>
Patent GB-2023136-A (GB)
Title: Cyclohexane containing derivatives of aromatic nitriles and their use as liquid crystal compounds
IPC: C07C53/134
Filed: 1979-05-17
Abstract: A new liquid crystal compound has a general formula:   <IMAGE>  where X is -CH2.CH2- or CH2O   <IMAGE> and R is a straight or branched (possibly chiral) alkyl group having up to 15 carbon atoms; and may be obtained by treating the corresponding bromo compounds with cuprous cyanide. The preparation of the intermediate bromo compounds is also described.
Patent GB-2025914-A (GB)
Title: Method for improving the Viscosity Characteristics of Kaolinitic Clay Suspensions
IPC: D21H19/40
Filed: 1979-06-27
Abstract: It is known to coat paper with kaolinitic clays using aqueous suspensions of kaolinitic clay applied by means of a high speed coating machine. Problems are commonly encountered because of increase in viscosity of the suspensions at high rates of shear, especially at high solids contents commonly employed in paper coating operations. The invention overcomes these problems by subjecting the clay suspension to mechanical shearing and, either prior to or after mechanical shear, treating the suspension with a cation exchange resin.
Patent GB-2059653-A (GB)
Title: Pushbutton set
IPC: H04M1/23
Filed: 1979-07-17
Abstract: In a telephone instrument in which the wanted number digit sending is effected without moving parts, optical techniques are used. The instrument has a coordinate array of digit positions with light beams from a source (5) aimed along the rows and columns of the array. At the other ends of the rows and columns are light detectors (8), coupled to an electronic circuit. To send a digit the user puts his finger into the array at the position for the digit to be sent, which interrupts two of the beams. The digit positions are defined by holes in a cover or by upstanding walls in a block of insulating material. <IMAGE>
Patent GB-2062107-A (GB)
Title: Turbine Driven Generator
IPC: F03G6/04
Filed: 1979-08-11
Abstract: Air heated by waste heat from a building, solar energy and steam pipes rises up a tower above the building to drive turbine blades projecting radially outwardly from a hollow vertical shaft within the tower and connected to an electric generator at the tower base. Extractor fans in the basement of the building draw cold air down through the shaft to drive further turbine blades in the shaft interior. <IMAGE>
Patent GB-2047427-A (GB)
Title: Automatic control of speed
IPC: A01D69/00
Filed: 1979-10-09
Abstract: A combine harvester incorporating an automatic travelling speed control system is adapted to reduce its travelling speed with an increase in the threshing load. The travel speed control includes a unit for detecting the output speed of a first speed change unit 10 before the output is subjected to a speed change by a second speed change unit 11. The first speed change unit is preferably an hydraulic stepless speed change unit whose control linkage is automatically adjusted by an electric motor 23 when the torque changes. Electric transducers are used to provide signals of torque and speed. <IMAGE>
Patent GB-2062255-A (GB)
Title: Weighing a Flowing Substance
IPC: G01G13/30
Filed: 1979-10-22
Abstract: A flowing substance is directed into and out of a plurality of reservoirs 1 in a cyclic sequence so that unloading each reservoir is maintained coincident with loading another. Each reservoir is loaded during period  tau 1 until the substance is present to within a predetermined upper range (Q3-Q4) then after a time interval  tau 5 in which the substance can settle, the loaded reservoirs are weighed during interval  tau 6 by dynamometric pickups 4 from which they are suspended. The reservoirs are unloaded during period  tau 3 to within a predetermined lower range (Q1-Q2) and after a settling time  tau 8 reweighed. Weighing data is memorised during periods  tau 7 and  tau 10 and relayed to arithmetic networks and a summation unit to provide indication of the total flow in a given time. The upper and lower ranges 25, 29 may be preset depending upon characteristics of the flow of substance, its weight, volume, loading or unloading time, or a combination thereof. <IMAGE>
Patent GB-2063727-A (GB)
Title: Hand held power tools
IPC: B24B23/02
Filed: 1979-11-14
Abstract: A mounting for supporting a hand held power tool such as an electric drill or electric grinder comprises a base plate assembly having a lower plate (10) and an upper support assembly (12). A platform support assembly (30) is pivotally mounted on the assembly (12) and a platform (46) is slideable relative thereto. A retaining nut and screw (68) hold the platform (46) in position and a cradle (48, 50) extending from the platform supports the body of the hand tool (60) on the platform. Closure members (52, 54) retain the body (60) in the cradle. A first handle extends between the two closure members and a second handle (22) upstands from the rear of the upper base plate assembly (12). A nut and screw (78, 80) act on rear form (70, 72) and control the angle of tilt of the platform support (30). A compression spring (88) acts against the nut and screw (70, 72) and also serves to absorb shocks. <IMAGE>
Patent GB-2048952-A (GB)
Title: Isostatic Hot Pressing Metal or Ceramic
IPC: C04B35/593
Filed: 1979-12-18
Abstract: A ceramic or metallic article is manufactured by isostatically hot pressing a preformed powder body which is embedded in glass or glass- forming material, for example in a mass of glass particles, in a vessel which is resistant to the temperature at which the sintering of the metallic or ceramic material is to be carried out. The embedding material is then transformed into a melt having a surface limited by the walls of the vessel, below which surface the preformed body is located, and the pressure necessary for the isostatic pressing of the preformed body is then applied on the melt by a gaseous pressure medium. Materials which may be isostatically pressed are Si3N4, silicon aluminium oxynitride, SiC, Fe and Ni based alloys.
Patent GB-2070479-A (GB)
Title: Apparatus for casting accumulator grids
IPC: B22D25/04
Filed: 1980-03-01
Abstract: The apparatus includes a rotary cylinder (1) formed with a shaped die profile on its external surface and positioned close to a static concave cylindrical surface (3 and 10) or a moving flexible belt or another rotary cylinder. Molten metal is introduced at the entry and the solidified castings are removed from the exit. The two parts (3 and 10) of the static block are separated by a thermal insulating barrier (9) and the part (10) is provided with cooling passages (16).   <IMAGE>
Patent GB-2071980-A (GB)
Title: Bait holder
IPC: A01M25/00
Filed: 1980-03-01
Abstract: Apparatus for holding pesticides comprises a bait tray 10 having a base portion 12 and a releasable lid 13. The base portion 12 and lid 13 together define an enclosed passageway 15 extending through the base portion at 12 and open at either end. A bait reservoir 19 is formed in the floor of the passageway intermediate its ends. This construction of the bait tray reduces contamination of the pesticide and prevents casual contact between pets or humans and the pesticide.   <IMAGE>
Patent GB-2071031-A (GB)
Title: A traverser and method of traversing a helicopter
IPC: B64F1/12
Filed: 1980-03-04
Abstract: For moving a helicopter (20) between its landing area on a ship's deck (22) and a hangar (30), a traversing system (50) comprises a traverser (52), a track (28) on the deck for carrying and guiding the traverser on the deck and control system (69) for controlling the movement of the traverser. The traverser has a low profile for utilization under the helicopter and comprising a base (54) for securing to the track and a cross member carried by the base and mounting a movable carriage. A control system controls the sliding of the carriage to secure the helicopter to the traverser. A method employing said traversing system is provided to minimize the manual labour employed in orienting a helicopter from its landing to storage in the hangar and vice versa. <IMAGE>
Patent GB-2046483-A (GB)
Title: Voltage regulator
IPC: G05F1/56
Filed: 1980-04-01
Abstract: A voltage regulator includes resistors R5, R10 and transistors Q1, Q2 forming a negative feedback arrangement that maintains an output voltage across terminals 12, 13 at a desired magnitude despite change in the input voltage across terminals 10, 11. The resistors are selected to cause the output voltage to track the changes with temperature of the base to emitter voltage of a transistors Q6. <IMAGE>
Patent GB-2043175-A (GB)
Title: Branch take-off and silencer for an air distributionsystem
IPC: F16L55/033
Filed: 1979-09-20
Abstract: A branch take-off and silencer apparatus for an air distribution system. The apparatus couples an input duct (10) to one or more branch ducts (14) and to an output duct (12). Inner and outer sections (22, 20) define a shell region (24). The shell region (24) is closed at its downstream end (26) and is adapted at its upstream end to receive air from the input duct (10). Porous acoustical material (32, 34, 35) is positioned within the shell region (24) to establish one or more channels in that region which extend from the upstream end to points (X) adjacent to one or more of the branch ducts (14). At these points (X), the channels are coupled to one or more of the branch ducts (14). The downstream end of the inner section (22) is coupled to the output duct (12).
Patent GB-2050242-A (GB)
Title: Refuse disposal system
IPC: B30B9/30
Filed: 1980-05-13
Abstract: The Specification concerns a refuse disposal system in which a refuse compacting unit located adjacent a wall of a building has a refuse input accessible from inside the building and a refuse output accessible from outside the building for discharging compacted refuse into a removable container. In order to permit a high degree of freedom in the placement of the container the unit is mounted on wheels for mobility and is located in an aperture in the wall, the aperture being substantially wider than the unit. The unit is disposed between a pair of sliding doors mounted for movement parallel to the wall, the doors being coupled to opposite sides of the unit by upwarding directed rollers on the doors engaging inverted channels along opposite sides of the unit. This arrangement permits free movement of the unit in a horizontal plane within the dimensional limitations of the arrangement, while ensuring that substantially the full width of the aperture in the wall is occupied by the combination of the unit and doors.
Patent GB-2077130-A (GB)
Title: Filtration apparatus
IPC: B01D29/70
Filed: 1980-06-07
Abstract: Filter vessel 10 encloses braided wire filter elements 11 attached at their upper ends to a plate (not shown) coupled to a pneumatic ram 14. Prior to start- up, a filter aid, such as diatomaceous earth, is introduced into a dirty liquid storage tank 22. To ensure that no inadequately filtrered liquid reaches filtrate storage tank 27, a control circuit 41 is included which, on starting up, firstly actuates ram 14 to shake and stretch the elements 11 clean and then closes valve 26 and opens valves 17 and 31, whereupon liquid and entrained filter aid are pumped from tank 22 through the vessel 10 and back to tank 22, depositing the filter aid on the elements 11. Thereafter, valve 26 is opened and valve 31 is closed, delivering filtered liquid to tank 27. When a predetermined pressure drop is sensed the cycle is repeated to break up and reform the filter aid coating. When said pressure drop is achieved in under a given time, indicating that the filter aid is heavily soiled, the valve 38 is opened and the elements shaken to dump the residue into sludge tank 40, which may include another filter. <IMAGE>
Patent GB-2054991-A (GB)
Title: Device for starting diesel engine having a preheating chamber
IPC: F02N19/04
Filed: 1980-07-21
Abstract: A device for starting Diesel engine in cold weather comprises a temperature sensor 25 which, after a time which is longer or shorter depending on the sensed environmental temperature, cuts off the current flow to the pre-heating resistors 24 of the engine preheating chamber while simultaneously causing current to be fed by a timer 27 to the engine-starting electric motor 28. <IMAGE>
Patent GB-2068489-A (GB)
Title: Pipe connections
IPC: F16L27/08
Filed: 1980-11-26
Abstract: The invention relates to a pipe connection, which is capable of rotary movement, between a housing (4, 5) and a socket (6) which enters the housing approximately coaxially. The socket carries within the housing a flange-like part (7) with a spherical rear surface (8). This surface is supported on an identically spherical sealing surface (8) of a sealing ring (14) in a ceramic material. The sealing ring bears, with its supporting surface (16) that is directed away from the sealing surface, against a supporting surface (21) which is connected to the housing, the supporting surfaces (21, 21) being substantially conical. <IMAGE>
Patent GB-2064933-A (GB)
Title: Plant transfer mechanisms
IPC: A01C11/02
Filed: 1980-12-16
Abstract: An apparatus for high-speed transfer of plants 30 from an array arranged in ranks and rows, in a web 28, to a transplanting location. The apparatus incorporates structure 52, 62, 64 which positively locates and stabilises the individual plants during their path of travel on conveyors 18, 22, from the array to their predetermined transplanting location 24, 26, as well as structure 38 which permits each rank of the array to be removed as a unit for transfer at 16 to the path of travel. The apparatus is also designed to eliminate interference by the top growth of each plant with individual placement and movement of the plants. <IMAGE>
Patent GB-2065181-A (GB)
Title: Apparatus for maintaining the relative position between wire being fed onto and wire wound about a spool
IPC: B65H54/04
Filed: 1980-12-18
Abstract: Apparatus for winding wire on a spool comprises guide means (37) for guiding the wire onto the spool; a sensing arm (21) movably responsive to sideways shifting of the wire during winding and displacing means for displacing the guide means dependent upon sensing arm movement. The displacing means comprises a rotary hydraulic servo-valve (15) connected by a shaft (2) to the sensing arm, and a hydraulic cylinder (17) connected to the servo-valve and shiftably movable relative to the spool. As the angle between the wire being fed onto the spool and the wire wound about the spool changes, the sensing arm is displaced thereby actuating said hydraulic cylinder and causing movement of said guide means thereby reestablishing the relative position between the wire being fed onto the spool and wire wound about the spool. <IMAGE>
Patent GB-2092522-A (GB)
Title: Decorating ceramic article
IPC: B44C1/17
Filed: 1981-02-07
Abstract: A process for decorating a ceramic article, for example an article of sanitary ware, comprises applying a decal to an unfired glaze on the unfired article, preferably after the application of a filler to the glaze, and subsequently firing the article, the pigments in the decal preferably being chosen from a range having a co-efficient of expansion which matches with that of the glaze.